MLA

Kissinger, Henry, 1923-2023. Schr-Schw. Box 98, folder 9. 1941. https://collections.library.yale.edu/catalog/12479481.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 98, folder 9"])(1941)[Schr-Schw]. https://collections.library.yale.edu/catalog/12479481.